how to test self adhesive flange discs

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self adhesive flange disc is protected for flange raised face ,so it can be allow blasting or coating of interior while protecting flange raised face

it is Easy to install not like tape 

in market for self adheisve  have paper type ,film(PE,PVC)type ,NBR rubber 

paper type can not sealed the blasting or coating,so coating is not safety

film type can not sealed with flange face ,also easy tear

NBR rubber Is good for sealed , good Tensile strength

检测项目Item

Unit

Spec.

Test Method

Test Result

拉伸强度Tensile strength

Mpa

>5

GB/T528-2009

8.3

扯断强度Elongation Strength Change

%

>250

GB/T528-2009

350

硬度Hardness(Shore A)

Points

65-70

GB/T528-2009

66

定伸(150%)永久变形Tensile Stress At A Give Elongation 150%

%

<25

GB/T528-2009

17

耐油性oil resistance (浸渍IRM9035H(149)

 

拉伸强度Tensile strengt

Mpa

>=7.0

GB/T20671-2009

11.2

增重率rate

%

<=30

GB/T20671-2009

15.1

 常温油密封性Oil seal property(Room Temperature uder pressure 10MPA, 30min)

ml/(h.mm)

Leakage N2<=300

GB/T528-2009

6.8

 

 

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